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147 lambda enigma p0141

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hi guys i was driving wifes 147 today and after refiling petrol here it came the ******* engine management light p 0141 bank 1 sensor 2 heater and this after i replaced 2 exhaust valves and all front suspension .now i ve deleted and comes every second start so i cleaned al 3 lambda conectors and all relays in the engine bay no luck thougt.wich one by the way is bank 1 sensor 2? 2 in the manifold left right looking at the engine and the lower under car one? this came just after i pour some petrol in and start it again so out of the blue .any other causes? sugestions? thanks in advance.
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Discussion Starter · #3 ·
no loss of power whatsoever goes like a bomb but that worry me cause the fuel gauge goes the same:eek: in your case maybe its the connections rather the sensors? or maybe its the 3rd sensor under the car? if its only the heater issue you get then with new sensors its definatly the connectors or the relay but if you get abnormal values errors then it may run rich,too much petrol so ,check maf,sparks, coils temp sensor all the usual.
 

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:cheese::cheese: it was only the heater for no 3 lambda,the bank1 sys 2 meaning the one on the exhaust last one by the way it manifest intermitent could be days till come back ,and if engine hot will not throw a error only on cold start obviously when heater has to do its job, happy enough anyway,as i know wat it is now, ONE BIT OF A TIP when engine under operating temp 90 say this 3rd lambda bank 1sys 2 will display 1.240v with no changes on any car i tested it only stars working and change its value after operating temp 90 or 107 on some opels and cat temp 600 celsius so be warn when you do live readings with diagnostics .all best chris.:thumbs:
 
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